Samsung Galaxy S5 User Manual page 32

Caution: You should remove your Google Account before shipping
your device to Samsung or any other service provider for service and
before resetting the device to factory settings.
Enable Factory Reset Protection
Adding a Google Account to your device automatically turns on the
Factory Reset Protection (FRP) security feature. For more information,
see google.com.
Disable Factory Reset Protection
To disable FRP, remove all Google Accounts from the device.
1. From a Home screen, tap
2. Tap Accounts > Google.
If you have more than one Google Account set up on your
•
device, tap the Google Account you want to remove.
3. Tap More > Remove account.
Getting Started
Apps > Settings.
20 Set Up Accounts